Stereochemical aspects of micellar properties of esterified glucoside surfactants in water: apparent molar volume, adiabatic compressibility, and aggregation number |
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| Authors: | K Fukada M Kawasaki T Seimiya Y Abe M Fujiwara K Ohbu |
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| Institution: | (1) Department of Chemistry Graduate School of Science Tokyo Metropolitan University Minamioosawa 1-1 Hachiohji, Tokyo 192-0397 Japan e-mail: fukada-kazuhiro@c.metro-u.ac.jp Tel.: +81-426-772537 Fax: +81-426-772525, JP;(2) Research and Development Headquarters Lion Corporation Hirai 7-13-12 Edogawaku Tokyo 132-0035, Japan, JP |
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| Abstract: | The apparent molar volume and the apparent molar adiabatic compressibility of the sugar-based surfactants methyl 6-O-octanoyl-α-d-glucopyranoside (α-MOnG), methyl 6-O-octanoyl-β-d-glucopyranoside (β-MOnG), and octyl β-d-glucoside were measured over a wide concentration range. Also, the aggregation number of their micelles was determined from
the Debye plot using static light scattering data. It was found that the micellar aggregation number for α-MOnG is 179 at
35 °C, which is 1.5 times larger than that for β-MOnG, suggesting that the anomerism of the head group influences the packing
of the monomers during micelle formation.
Received: 30 September 1999 Accepted: 15 December 1999 |
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| Keywords: | Sugar surfactant Anomerism Micelle Compressibility Static light scattering |
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